I’ve published Sonify. This is a script to transmit data via ultrasound Morse code. Please see: Sonify – transmitting data via ultrasound morse code
This is another article in the Soft TEMPEST series. Please see also:
Moxon antenna for 125MHz
I’ve always wanted to make a Moxon antenna, but didn’t have an excuse to do so. Recently i needed a very lightweight directional antenna for Etherify with not so much gain, but considerable F/B, so i finally had the excuse i needed.
